MCUXpresso IDE中的主题 How to write to SDRAM on K65 using MCUXpresso IDE?

How to write to SDRAM on K65 using MCUXpresso IDE?

joseph_jean-jac — Fri, 25 Jan 2019 01:15:39 GMT

Hello Everyone,

I am trying to find out how to write to the 64 Mb SDRAM on the K65 using MCUXpresso IDE? I been using the 256 kb SRAM and I believe that is why I am running into the following issue: "FreeRTOS does not have enough memory in the heap to start the kernel".

As usual, any help is greatly appreciated!

Thanks!

Re: How to write to SDRAM on K65 using MCUXpresso IDE?

jingpan — Fri, 25 Jan 2019 08:15:08 GMT

Hi Joseph,

K65 hasn't internal SDRAM. But it has a SDRAM controller. To get SDRAMC demo, please download K65 SDK from Welcome | MCUXpresso SDK Builder .

The demo is in SDK_2.2_TWR-K65F180M\boards\twrk65f180m\driver_examples\sdramc

Regards,

Jing

Re: How to write to SDRAM on K65 using MCUXpresso IDE?

joseph_jean-jac — Mon, 28 Jan 2019 00:39:24 GMT

I should have mentioned I have to the twr-k65 which does has internal SDRAM, specifically 64 Mb.

Thank you for pointing out the SDK demo that has code already written to configure the SDRAM for reading and writing.